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2 years ago

I need help with this question answer ASAP

Mathematics

1 answer:

Sedaia [141]2 years ago

3 0

Answer:

Step-by-step explanation:

Plug 2 in for y in the second equation. You get 3 as x. So x=3 and y=2. (3,2)

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17. Critique Reasoning Lisa used a number line to model 2(3). Does her number line make sense? Explain why or why not. 8-7-6-5-4

timama [110]

Reasoning Criticism Lisa modeled 2 with a number line (3). Her logical number line is -6.

<h3>What is meant by number line?</h3>

A number line is a graphical representation of numbers on a straight line. A number line has numbers that are sequentially placed at equal distances along its length.

It can be extended in any direction indefinitely and is usually represented horizontally. A number line is a horizontal line with mathematical increments spaced evenly.

The numbers on the line will determine how to answer the number on the line. The number's use is determined by the question that goes with it, such as plotting a point.

The number line is a straight line with divisions at equal intervals, similar to a scale.

Therefore, Reasoning Criticism Lisa modeled 2 with a number line (3). Her logical number line is -6.

To learn more about number line, refer to:

brainly.com/question/24644930

#SPJ1

8 0

1 year ago

I need help for #3 please! Asap:)

Artemon [7]

Is this multiple choice? I know that a is correct.

8 0

2 years ago

Read 2 more answers

Cherry Avenue Park is in the shape of a rectangle. What is the area, in square

wlad13 [49]

Answer: a rectangles area is length x width. You need to find the numbers that represent the length and the width and multiply them

Step-by-step explanation:

7 0

3 years ago

-2 (3 + 5y -10) = 34

IrinaK [193]

-2 (3+5y-10) = 34
Step 1) -6-10y+20=34
Step 2) -10y+20=40
Step 3) -10y=20
Step 4) y = -2
Answer is -2

7 0

3 years ago

Read 2 more answers

A researcher tests five individuals who have seen paid political ads about a particular issue. These individuals take a multiple

devlian [24]

Answer:

$t=\frac{46-40}{\frac{5.148}{\sqrt{5}}}=2.606$

The degrees of freedom are given by:

$df=n-1=5-1=4$

The p value wuld be given by:

$p_v =2*P(t_{(4)}>2.606)=0.060$

For this case the p value is higher than the significance level so then we can conclude that the true mean is not significantly different from 40

The distribution with the critical values are in the figure attached

Step-by-step explanation:

Information given

48, 41, 40, 51, and 50

The sample mean and deviation can be calculated with these formulas:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

$s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

$\bar X=46$ represent the mean height for the sample

$s=5.148$ represent the sample standard deviation

$n=5$ sample size

$\mu_o =40$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test

Hypothesis to test

We want to test if the true mean for this case is equal to 40, the system of hypothesis would be:

Null hypothesis: $\mu = 40$

Alternative hypothesis: $\mu \neq 40$

The statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing we got:

$t=\frac{46-40}{\frac{5.148}{\sqrt{5}}}=2.606$

The degrees of freedom are given by:

$df=n-1=5-1=4$

The p value wuld be given by:

$p_v =2*P(t_{(4)}>2.606)=0.060$

For this case the p value is higher than the significance level so then we can conclude that the true mean is not significantly different from 40

The distribution with the critical values are in the figure attached

6 0

3 years ago